Abstract
AbstractThe larval shells of the marine bivalves Mercenaria mercenaria and Crassostrea gigas are investigated by polarized light microscopy, infrared spectroscopy, Raman imaging spectroscopy, and scanning electron microscopy. Both species contain similar shell ultrastructures. We show that larval shells contain amorphous calcium carbonate (ACC), in addition to aragonite. The aragonite is much less crystalline than nonbiogenic aragonite. We further show that the initially deposited mineral phase is predominantly ACC that subsequently partially transforms into aragonite. The postset juvenile shell, as well as the adult shell of Mercenaria also contains aragonite that is less crystalline than nonbiogenic aragonite. We conclude that ACC fulfills an important function in mollusc larval shell formation. It is conceivable that ACC may also be involved in adult shell formation. J. Exp. Zool. 293:478–491, 2002. © 2002 Wiley‐Liss, Inc.
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Dates
Type | When |
---|---|
Created | 21 years, 1 month ago (June 30, 2004, 12:20 p.m.) |
Deposited | 1 year, 9 months ago (Nov. 19, 2023, 5:12 a.m.) |
Indexed | 6 days, 5 hours ago (Aug. 23, 2025, 9:51 p.m.) |
Issued | 23 years ago (Aug. 29, 2002) |
Published | 23 years ago (Aug. 29, 2002) |
Published Online | 23 years ago (Aug. 29, 2002) |
Published Print | 22 years, 10 months ago (Oct. 1, 2002) |
@article{Weiss_2002, title={Mollusc larval shell formation: amorphous calcium carbonate is a precursor phase for aragonite}, volume={293}, ISSN={1097-010X}, url={http://dx.doi.org/10.1002/jez.90004}, DOI={10.1002/jez.90004}, number={5}, journal={Journal of Experimental Zoology}, publisher={Wiley}, author={Weiss, Ingrid Maria and Tuross, Noreen and Addadi, Lia and Weiner, Steve}, year={2002}, month=aug, pages={478–491} }